Esab Ultrarex UXD-P2000 Upgrade Project

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02 Jun 2020 17:14 #169826 by tommylight
And you forgot one of the following
Mesa 5i25 if the PC has a PCI slot
OR
Mesa 6i25 if the PC has PCI-E slot
OR
Mesa 7i92 if the PC has none of the above.

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02 Jun 2020 17:45 #169838 by rodw
Great you guys are making progress. I would get the THCAD-10 as its much more versatile and not as prone to letting the magic smoke out on a HF start machine.

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02 Jun 2020 18:02 #169845 by tommylight

rodw wrote: Great you guys are making progress. I would get the THCAD-10 as its much more versatile and not as prone to letting the magic smoke out on a HF start machine.

forum.linuxcnc.org/show-your-stuff/38547...uild?start=80#169833
Doing just that, using a THCAD300 on a HF/HV plasma, two days with no smoke should be enough to prove that it does work.
And, here i go again:
----
Using THCAD300 with a HF start plasma is not recommended without exclusive knowledge of where to wire/connect it inside the plasma source.
----
PSA done ! :)

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02 Jun 2020 18:10 - 02 Jun 2020 18:14 #169848 by Esaber

The drive for the Z axis will most probably have to go, that is why i said that you do need a new drive, the motor remains. Maybe it can be used but the time it takes to figure that out and to do the new wiring to and from it is much more expensive than a new drive. The one i did, i did not bother with it, way to much work, so just added a new one.
Just checked the pictures again, no need for a sensor, it already has them.
And there is no machine schematics in the attached pictures. That is the important part as without it it will be quite a challenge to help you set everything properly.
You need only one 7i77, hopefully ! :)


Great. Which drive would you recommend, please?
Last edit: 02 Jun 2020 18:14 by Esaber.

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02 Jun 2020 18:16 #169851 by Esaber

Using THCAD300 with a HF start plasma is not recommended without exclusive knowledge of where to wire/connect it inside the plasma source.
----
PSA done ! :)


You lost me there guys ! What do I get the THCAD300 or THCAD10

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02 Jun 2020 19:18 #169860 by tommylight
THCAD needs 2 resistors of 1 Mega Ohm resistance, so if you order this, order the resistors also.
This is more flexible if and when you move to the big plasma.

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02 Jun 2020 19:43 #169861 by Clive S

tommylight wrote: THCAD needs 2 resistors of 1 Mega Ohm resistance, so if you order this, order the resistors also.
This is more flexible if and when you move to the big plasma.


Did you miss the -10 of the THC
The following user(s) said Thank You: tommylight

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02 Jun 2020 20:07 #169862 by Esaber
So it's the THCAD-10 then?

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02 Jun 2020 20:19 #169865 by tommylight
Yes and yes, to both of you ! :)

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02 Jun 2020 21:19 #169870 by Esaber
Good.
New updated list:
Missing drive info. I found some info on the P2500 thread. I will comptare.

- PC and monitor => OK
- Mesa 5i25 => OK
- Mesa 7i77 => OK
MESA 7i77 Analog servo interface plus I/O daughtercard - sourcing output version
eusurplus.com/index.php?route=product/pr...ct_id=51&search=7i77
- THCAD => OK
THCAD+10
eusurplus.com/index.php?route=product/pr..._id=114&search=thcad
2 resistors of 1 Mega Ohm resistance
- 2X small 24V relays
24v-DC-Coil-General-purpose-Relays-8-Pin-with-DIN-Sockets-DPDT-5A-MY2NJ
www.ebay.co.uk/itm/24v-DC-Coil-General-p...A-MY2NJ/163150100577
- Encoder => OK
Rotary-Encoder-400P-R-6mm-Incremental-Optical-Shaft-Working-Measurement-5-24V-S2
www.ebay.co.uk/itm/Rotary-Encoder-400P-R...-24V-S2/233439617211
- Drive: missing info
- CAT6 cable => OK
- DVM = > OK

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